阅读说明：本技术 轨道车辆的充电装置、系统 (Charging device and system for railway vehicle ) 是由 张鹏程 其他发明人请求不公开姓名 于 2018-07-27 设计创作，主要内容包括：本发明提出了一种轨道车辆的充电装置和充电系统,其中,充电装置包括：受流器,受流器用于连接轨道车辆的取流器；充电器,充电器包括壳体以及设置在壳体中的充电模块、控制模块、通信模块和火灾报警模块,控制模块用于在通过通信模块接收到轨道车辆发送的充电指令时,控制充电模块给轨道车辆进行充电,火灾报警模块用于监测充电装置是否发生火灾,并在充电装置发生火灾时,输出报警信号,并通过通信模块将报警信号发送至轨道车辆,以使轨道车辆根据报警信号生成充电禁止指令,并将充电禁止指令发送至控制模块,控制模块在接收到充电禁止指令时,控制充电模块停止对轨道车辆进行充电。该充电装置能够实现对轨道车辆的安全充电,且简单易实现。(The invention provides a charging device and a charging system of a rail vehicle, wherein the charging device comprises: the current collector is used for connecting a current taking device of the railway vehicle; the charger comprises a shell, a charging module arranged in the shell, a control module, a communication module and a fire alarm module, wherein the control module is used for controlling the charging module to charge the rail vehicle when receiving a charging instruction sent by the rail vehicle through the communication module, the fire alarm module is used for monitoring whether the charging device is in fire or not, outputting an alarm signal when the charging device is in fire, and sending the alarm signal to the rail vehicle through the communication module, so that the rail vehicle generates a charging prohibition instruction according to the alarm signal and sends the charging prohibition instruction to the control module, and the control module controls the charging module to stop charging the rail vehicle when receiving the charging prohibition instruction. The charging device can realize safe charging of the rail vehicle, and is simple and easy to realize.)

1. A charging device for a rail vehicle, comprising:

the current collector is used for connecting a current collector of the railway vehicle;

a charger including a housing, and a charging module, a control module, a communication module and a fire alarm module disposed in the housing,

one end of the charging module is connected with an alternating current power supply, the other end of the charging module is connected with the current collector, the control module is used for controlling the charging module to charge the rail vehicle when receiving a charging instruction sent by the rail vehicle through the communication module,

the fire alarm module is used for monitoring whether the charging device is in a fire disaster or not, outputting an alarm signal when the charging device is in the fire disaster, and sending the alarm signal to the rail vehicle through the communication module so that the rail vehicle generates a charging prohibition instruction according to the alarm signal and sends the charging prohibition instruction to the control module, wherein the control module is further used for controlling the charging module to stop charging the rail vehicle when receiving the charging prohibition instruction.

2. The rail vehicle charging device according to claim 1, wherein the charging device is provided at a charging station, and the charging command includes a precharge command and a charge enable command, wherein,

when the rail vehicle is about to drive into the charging station, the pre-charging instruction is sent to the control module, so that the control module controls the charging module to pre-charge;

when the rail vehicle does not receive the alarm signal and stops at the charging station, a charging permission instruction is sent to the control module, so that the control module controls the charging module to charge the rail vehicle.

3. The charging device for the railway vehicle as claimed in claim 1, wherein the fire alarm module comprises a power supply unit, a fire sensing unit, and an alarm unit, wherein the power supply unit, the fire sensing unit, and the alarm unit are connected in series to constitute a series circuit, the series circuit is turned on when the fire sensing unit senses a fire in the charging device, and the alarm unit outputs the alarm signal.

4. The rail vehicle charging apparatus as claimed in claim 1, wherein the charging module comprises an AC-DC converter and a charging circuit, wherein one end of the AC-DC converter is connected to an AC power source, and the other end of the AC-DC converter is connected to the current collector through the charging circuit.

5. The rail vehicle charging device of claim 4, wherein the current collector comprises a first slot and a second slot arranged in parallel, wherein the charging circuit comprises:

one end of the positive contactor is connected with the positive electrode of the other end of the AC-DC converter, and the other end of the positive contactor is connected with the first tank body;

one end of the negative contactor is connected with the negative electrode of the other end of the AC-DC converter, and the other end of the negative contactor is connected with the second tank body;

one end of the pre-charging contactor is connected with the positive electrode of the other end of the AC-DC converter;

one end of the pre-charging resistor is connected with the other end of the pre-charging contactor, and the other end of the pre-charging resistor is connected with the first groove body;

the positive contactor, the negative contactor and the pre-charging contactor are controlled by the control module.

6. The charging device for a railway vehicle as claimed in claim 3, wherein the fire sensing unit comprises a first temperature-sensitive cable and a second temperature-sensitive cable, wherein the first temperature-sensitive cable and the second temperature-sensitive cable are coated with a heat-sensitive material layer and are twisted together.

7. The rail vehicle charging device according to claim 1, wherein the current collector is a charging slot arranged along a running rail when the current collector is a charging blade arranged on the bottom of the rail vehicle, wherein the charging slot is connected to the charging blade when the rail vehicle is parked at the charging station.

8. The charging device for a railway vehicle as claimed in claim 3, wherein the fire alarm module further comprises:

and the fire extinguishing unit is connected in series in the series circuit and is used for extinguishing fire when the series circuit is switched on.

9. The charging apparatus for a railway vehicle as claimed in claim 8, wherein the fire alarm module further comprises a boosting unit, wherein the boosting unit comprises:

and a primary coil of the boosting transformer is connected with the power supply unit, and a secondary coil of the boosting transformer is connected with the fire extinguishing unit and the fire sensing unit in series to form a series loop.

10. The charging device for a railway vehicle as claimed in claim 9, wherein the alarm unit comprises:

the secondary coil is connected with the positive output end of the secondary coil;

the anode of the alarm diode is connected with the other end of the alarm starting button;

one end of the alarm resistor is connected with the cathode of the alarm diode;

and one end of the alarm indicator lamp is connected with the other end of the alarm resistor, and the other end of the alarm indicator lamp is connected with the negative output end of the secondary coil through the fire extinguishing unit and the fire sensing unit.

11. A charging system for a rail vehicle, comprising:

a rail vehicle;

charging device for a rail vehicle according to one of claims 1 to 10.

Technical Field

The invention relates to the technical field of rail vehicle charging, in particular to a charging device of a rail vehicle and a charging system of the rail vehicle.

Background

With the development of science and technology and the attention of people to environmental problems, the development of the rail vehicle powered by electric energy is rapid. In order to meet the charging requirement of the rail vehicle, a charging device (such as a charging pile, a charging cabinet and the like) needs to be arranged to charge the rail vehicle. However, the charging device is generally closed, so that in some cases, when a fire occurs inside the charging device during the charging process of the rail vehicle, the fire is not easy to be found in time, so that a fire cannot be dealt with in time, and life and property losses are easily caused. Therefore, how to find the fire of the charging device in time so as to deal with the fire in time is a problem which needs to be solved urgently.

Disclosure of Invention

The present invention is directed to solving, at least to some extent, one of the technical problems in the related art.

Therefore, a first object of the present invention is to provide a charging device for a rail vehicle, which can safely charge a rail device and is simple and easy to implement.

A second object of the invention is to propose a charging system for a rail vehicle.

In order to achieve the above object, a first embodiment of the present invention provides a charging device for a rail vehicle, the charging device being disposed at a charging station, the charging device comprising: the current collector is used for connecting a current collector of the railway vehicle; the charger comprises a shell, and a charging module, a control module, a communication module and a fire alarm module which are arranged in the shell, wherein one end of the charging module is connected with an alternating current power supply, the other end of the charging module is connected with the current collector, the control module is used for controlling the charging module to charge the rail vehicle when receiving a charging instruction sent by the rail vehicle through the communication module, the fire alarm module is used for monitoring whether the charging device is in fire, outputting an alarm signal when the charging device is in fire, and sending the alarm signal to the rail vehicle through the communication module so that the rail vehicle generates a charging prohibition instruction according to the alarm signal and sends the charging prohibition instruction to the control module, wherein, the control module is further used for controlling the charging module to stop charging the rail vehicle when the charging prohibition instruction is received.

According to the charging device for the rail vehicle, whether the charger is in fire or not is sensed through the fire sensing unit, and when the fire occurs, an alarm signal is output, so that the control module controls the charging module to stop charging the rail vehicle. The charging device can realize safe charging of the rail vehicle, and the realization mode is simple and easy.

In addition, the charging device for the rail vehicle according to the above embodiment of the present invention may further have the following additional technical features:

according to one embodiment of the invention, the charging device is arranged at a charging station, and the charging command comprises a pre-charging command and a charging permission command, wherein the pre-charging command is sent to the control module when the railway vehicle is about to drive into the charging station, so that the control module controls the charging module to pre-charge; when the rail vehicle does not receive the alarm signal and stops at the charging station, a charging permission instruction is sent to the control module, so that the control module controls the charging module to charge the rail vehicle.

According to an embodiment of the present invention, the fire alarm module includes a power supply unit, a fire sensing unit, and an alarm unit, wherein the power supply unit, the fire sensing unit, and the alarm unit are connected in series to form a series circuit, and when the fire sensing unit senses that a fire occurs in the charging device, the series circuit is turned on, and the alarm unit outputs the alarm signal.

According to one embodiment of the invention, the charging module comprises an AC-DC converter and a charging circuit, wherein one end of the AC-DC converter is connected with an alternating current power supply, and the other end of the AC-DC converter is connected with the current collector through the charging circuit.

According to an embodiment of the present invention, the current collector includes a first slot and a second slot arranged in parallel, wherein the charging circuit includes: one end of the positive contactor is connected with the positive electrode of the other end of the AC-DC converter, and the other end of the positive contactor is connected with the first tank body; one end of the negative contactor is connected with the negative electrode of the other end of the AC-DC converter, and the other end of the negative contactor is connected with the second tank body; one end of the pre-charging contactor is connected with the positive electrode of the other end of the AC-DC converter; one end of the pre-charging resistor is connected with the other end of the pre-charging contactor, and the other end of the pre-charging resistor is connected with the first groove body; the positive contactor, the negative contactor and the pre-charging contactor are controlled by the control module.

According to an embodiment of the present invention, the fire sensing unit includes a first temperature-sensitive cable and a second temperature-sensitive cable, wherein the first temperature-sensitive cable and the second temperature-sensitive cable are coated with a heat-sensitive material layer and are twisted together.

According to one embodiment of the invention, when the current collector is a charging blade arranged on the bottom of the rail vehicle, the current collector is a charging slot arranged along a running rail, wherein the charging slot is connected to the charging blade when the rail vehicle is parked at the charging station.

According to an embodiment of the present invention, the fire alarm module further includes: and the fire extinguishing unit is connected in series in the series circuit and is used for extinguishing fire when the series circuit is switched on.

According to an embodiment of the present invention, the fire alarm module further includes a boosting unit, wherein the boosting unit includes: and a primary coil of the boosting transformer is connected with the power supply unit, and a secondary coil of the boosting transformer is connected with the fire extinguishing unit and the fire sensing unit in series to form a series loop.

According to one embodiment of the invention, the alarm unit comprises: the secondary coil is connected with the positive output end of the secondary coil; the anode of the alarm diode is connected with the other end of the alarm starting button; one end of the alarm resistor is connected with the cathode of the alarm diode; and one end of the alarm indicator lamp is connected with the other end of the alarm resistor, and the other end of the alarm indicator lamp is connected with the negative output end of the secondary coil through the fire extinguishing unit and the fire sensing unit.

In order to achieve the above object, a second aspect of the present invention provides a charging system for a rail vehicle, including a rail vehicle and the charging device of the above embodiment.

According to the rail vehicle charging system provided by the embodiment of the invention, the rail vehicle can be safely charged through the charging device provided by the embodiment, and the implementation mode is simple and feasible.

Drawings

The foregoing and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:

fig. 1 is a block diagram of a charging device for a rail vehicle according to an embodiment of the present invention;

FIG. 2 is a schematic configuration diagram of a fire alarm module according to a first embodiment of the present invention;

FIG. 3 is a schematic structural view of a fire alarm module according to a second embodiment of the present invention;

FIG. 4 is a schematic structural view of a fire alarm module according to a third embodiment of the present invention;

fig. 5 is a schematic structural view of a charging device of a rail vehicle according to an embodiment of the present invention;

FIG. 6 is a flow chart of the operation of a charging device for a rail vehicle according to one embodiment of the present invention;

fig. 7 is a block diagram of a charging system of a rail vehicle according to an embodiment of the present invention.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are illustrative and intended to be illustrative of the invention and are not to be construed as limiting the invention.

The following describes a charging device and a system for a railway vehicle according to an embodiment of the present invention with reference to the drawings.

Fig. 1 is a block diagram of a charging device for a rail vehicle according to an embodiment of the present invention. As shown in fig. 1, the charging device for a railway vehicle includes: a current collector 10 and a charger 20.

The current collector 10 is used for connecting a current collector of a rail vehicle. The charger 20 comprises a shell 25, and a charging module 21, a control module 22, a fire alarm module 23 and a communication module 24 which are arranged in the shell 25, wherein one end of the charging module 21 is connected with an alternating current power supply, the other end of the charging module 21 is connected with the current collector 10, and the control module 22 is used for controlling the charging module 21 to charge the rail vehicle when receiving a charging instruction sent by the rail vehicle through the communication module 24.

The fire alarm module 23 is configured to monitor whether the charging device is in a fire, output an alarm signal when the charging device is in a fire, and send the alarm signal to the rail vehicle through the communication module 24, so that the rail vehicle generates a charging prohibition instruction according to the alarm signal and sends the charging prohibition instruction to the control module 22. The control module 22 is further configured to control the charging module 21 to stop charging the rail vehicle when receiving the charging prohibition instruction.

Therefore, the charging device can realize safe charging of the rail vehicle, and is simple and easy to realize.

In an embodiment of the invention, the charging device may be arranged at a charging station, for example, a plurality of charging stations may be arranged on the travel route of the rail vehicle, each provided with a charging device, in order to better meet the charging requirements of the rail vehicle. The rail vehicle may be, for example, a baboon, a rail train, or the like.

Alternatively, the housing 25 may be a box in which the charging module 21, the control module 22, and the fire alarm module 23 are disposed. In this example, the communication module 24 may be disposed within the housing 25, or may be disposed outside the housing 25.

Further, in an embodiment of the present invention, the fire alarm module 23 includes a power supply unit 231, a fire sensing unit 232, and an alarm unit 233, the power supply unit 231, the fire sensing unit 232, and the alarm unit 233 are connected in series to form a series circuit, when the fire sensing unit 232 senses that the charging device is in a fire, the series circuit is turned on, and the alarm unit 233 outputs an alarm signal.

The fire sensing unit 232 may include a thermal sensitive material, for example, the fire sensing unit 232 is a thermistor, and the fire sensing unit 232 is two cables twisted together and covered by the thermal sensitive material, and when the temperature in the box is too high, the thermal sensitive material is physically changed, so that the series circuit is turned on.

In one example, as shown in fig. 2, the fire sensing unit 232 includes a first temperature-sensitive cable l1 and a second temperature-sensitive cable l2, in which the first temperature-sensitive cable l1 and the second temperature-sensitive cable l2 are each coated with a layer of a heat-sensitive material and are twisted together. When the temperature in the box body is too high, the thermosensitive material layers coated by the first temperature sensing cable l1 and the second temperature sensing cable l2 are melted, and the first temperature sensing cable l1 and the second temperature sensing cable l2 are in point connection. Compared with an electronic sensor, the fire sensing unit 232 is safe and reliable, is not prone to interference, is low in price, and the temperature sensing cables can be arranged on the wall of the box body reliably, so that the occupied space is small, meanwhile, the temperature sensing cables can be arranged in the box body in a bending mode, the temperature sensing range is large, and full coverage of temperature sensing inside the box body is achieved.

The alarm unit 233 may be an alarm indicator light or an alarm, for example, when the loop in which the alarm unit 233 is located is turned on, the indicator light is turned on or the alarm sounds, so that the staff of the charging station can know that the charger 20 is abnormal in time. The alarm is given through the alarm indicating lamp or the alarm, the alarm effect is good, the alarm is automatic, other intermediate judgment links are not needed, and the method is simple and easy to implement.

Optionally, the power supply unit 231 is a battery, and the voltage of the battery can ensure that the alarm unit works and is less than or equal to a safe voltage value, such as a 24V battery. The power supply unit 231 has low voltage level, safety and reliability, and less harm to human body, and does not need to introduce other standard power supplies, thereby reducing the structure of the charging device and saving the cost.

Specifically, when the charging device is not in a normal state and a fire occurs, the temperature in the box body is normal, the fire sensing unit 232 is equivalent to an open switch, the loop where the alarm unit 233 is located is open, and no alarm signal is generated. When the charging device is in fire, the temperature in the box body rises, and when the temperature rises to a certain value, the heat-sensitive material in the fire sensing unit 232 is physically changed, so that the fire sensing unit 232 is equivalent to a closed switch, a loop where the alarm unit 233 is located is conducted, and the alarm unit 233 is electrified to generate an alarm signal, so that the charger 20 stops charging the railway vehicle. Therefore, the fire detection system does not need a complex control strategy or an external power supply circuit, is simple in structure, easy to realize, low in cost and convenient to improve the charging safety of the rail vehicle.

Further, the alarm unit 233 may have an output pin to which the communication module 24 is connected. Of course, the output pin may be provided at an end of the alarm unit 233 connected to the power supply unit 231, or at an end connected to the fire sensing unit 232. When the loop where the alarm unit 233 is located is turned on, the output pins all output high level signals, i.e., alarm signals; when the loop where the alarm unit is located is disconnected, no potential signal is output from the output pin. In this example, the alarm unit 233 may include an output pin and a normally closed micro switch, as shown in fig. 2, or may have only an output pin.

The communication module 24 may include a switch, an ethernet, a wireless access point, etc., and a corresponding vehicle-mounted wireless access point is provided on the rail vehicle, so that the control module 22 and the alarm unit 233 can both perform wireless communication with the rail vehicle, such as a vehicle control unit of the rail vehicle, through the communication module 24.

In one embodiment of the present invention, as shown in fig. 3, the fire alarm module 23 may further include a fire extinguishing unit 234, the fire extinguishing unit 234 is connected in series in the series circuit, and the fire extinguishing unit 234 is used for performing a fire extinguishing action when the series circuit is conducted, so as to reduce damage and loss caused by a fire.

Further, as shown in fig. 3, the fire alarm module 23 further includes a voltage boosting unit 235, wherein the voltage boosting unit 235 includes a voltage boosting transformer, a primary coil T1 of the voltage boosting transformer is connected to the power supply unit 231, and a secondary coil T2 of the voltage boosting transformer is connected in series with the fire extinguishing unit 234 and the fire sensing unit 232 to form a series circuit.

Referring to fig. 3, the boosting unit 235 serves as a battery voltage boosting device for boosting the battery voltage to a preset value to provide corresponding electric power to the fire extinguishing unit 234.

In one embodiment of the present invention, as shown in fig. 4, the fire alarm module 23 further includes a power self-checking unit 236, and the power self-checking unit 236 includes a power self-checking button SQ2, a power self-checking diode VT1, a power self-checking resistor R1, and a power self-checking lamp L1.

Wherein, one end of the power self-checking button SQ2 is connected to the positive electrode of the power supply unit 231; the anode of the electric quantity self-checking diode VT1 is connected with the other end of the electric quantity self-checking button SQ 2; one end of the electricity quantity self-checking resistor R1 is connected with the cathode of the electricity quantity self-checking diode VT 1; one end of the self-checking electric quantity lamp L1 is connected to the other end of the self-checking electric quantity resistor R1, and the other end of the self-checking electric quantity lamp L1 is connected to the negative electrode of the power supply unit 231. Wherein the closing and opening of the power self test button SQ2 may be controlled by the control module 22.

Specifically, the power self-test unit 236 functions as a power self-test device of the built-in battery (i.e., the power supply unit 231). The power self-test button SQ2 serves as a switch device of the power self-test unit 236, and when pressed, the power self-test unit 236 is turned on; when released, the power self-test unit 236 is disconnected; the battery self-checking diode VT1 and the battery self-checking resistor R1 are used as protection elements of the battery self-checking unit 236 to protect the current of the battery self-checking unit 236 from fluctuating within a reasonable range; the self-checking battery lamp L1 serves as a warning device for the self-checking battery unit 236, and when the self-checking battery unit 236 performs self-checking, if L1 is bright, it indicates that the battery is in a sufficient state, and if L1 is not bright, it indicates that the battery is not connected or the battery level is lower than a normal value, and it should be checked whether the battery is connected or replaced.

Further, as shown in fig. 4, the fire alarm module 23 further includes a boosting self-test unit 237, where the boosting self-test unit 237 includes; the boost self-test device comprises a boost self-test button SQ3, a boost self-test diode VT2, a boost self-test resistor R2 and a boost self-test lamp L2.

One end of a boosting self-test button SQ3 is connected with the positive output end of the secondary coil T2; the anode of the boosting self-detection diode VT2 is connected with the other end of the boosting self-detection button SQ 3; one end of the boosting self-detection resistor R2 is connected with the cathode of the boosting self-detection diode VT 2; one end of the boosting self-checking lamp L2 is connected with the other end of the boosting self-checking resistor R2, and the other end of the boosting self-checking lamp L2 is connected with the negative output end of the secondary coil T2. Wherein the closing and opening of the boost self test button SQ3 may be controlled by the control module 22.

Specifically, the boosting self-test unit 237 is used as a self-test device for testing whether the boosting unit 235 is working normally. The boost self-test button SQ2 is used as a switching device of the boost self-test unit 237, and when pressed, the boost self-test unit 237 is turned on, and when released, the boost self-test unit 237 is turned off; the boosting self-checking diode VT2 and the boosting self-checking resistor R2 are used as protection elements of the boosting self-checking unit 237, and the current of the boosting self-checking unit 237 is protected from fluctuating within a reasonable range; the boosting self-checking lamp L2 is used as a warning device for warning whether the boosting self-checking unit 237 works normally, when the boosting self-checking unit 237 performs self-checking, if L2 is bright, it indicates that the boosting self-checking unit 237 works normally, and if L2 is not bright, it indicates that the boosting self-checking unit 237 has a fault.

Therefore, the electric quantity self-checking single cloud and the boosting self-checking unit are arranged in the fire alarm module, the electric quantity of the built-in battery and the boosting unit can be self-checked, the working condition of each state of the fire alarm module can be timely mastered, and the fire alarm module can be rapidly subjected to fault diagnosis. Meanwhile, due to the arrangement of the electric quantity self-checking lamp L1 and the boosting self-checking lamp L2, the abnormal working of the electric quantity and the boosting unit can be warned, the link of information transmission is reduced, and the warning effect is good.

In an embodiment of the present invention, as shown in fig. 3 and 4, the alarm unit 233 may further include: an alarm start button SQ4, an alarm diode VT3, an alarm resistor R3 and an alarm indicator lamp L3.

Wherein, one end of the alarm start button SQ4 is connected with the positive output end of the secondary coil T2; the anode of the alarm diode VT2 is connected with the other end of the alarm starting button SQ 4; one end of the alarm resistor R3 is connected with the cathode of the alarm diode VT 3; one end of the alarm indicator lamp L3 is connected to the other end of the alarm resistor R3, and the other end of the alarm indicator lamp L3 is connected to the negative output terminal of the secondary coil T2 through the fire extinguishing unit 234 and the fire sensing unit 232. In this embodiment, the closing and opening of alarm enable button SQ4 may be controlled by control module 22. Wherein, the output pin can be connected with any one of an alarm starting button SQ4, an alarm diode VT3, an alarm resistor R3 and an alarm indicator lamp L3.

Specifically, the alarm start button SQ4 is used as a switch of the fire alarm module 23 action circuit, and plays a role in turning on and off the fire alarm module 23 action circuit, when the alarm start button SQ4 is pressed, the action circuit is turned on, and the fire extinguishing unit 234 is in a working state; when the alarm starting button SQ4 is released, the action circuit is turned off, and the fire extinguishing unit 234 is in a silent state; the alarm diode VT2 and the alarm resistor R3 are used as protection elements of the alarm unit 233, and the current of the circuit of the alarm unit 233 is protected from fluctuating within a reasonable range; the warning lamp L3 is used as a warning device for the occurrence of a fire, and is lit when a fire occurs and not lit when a fire does not occur.

Therefore, the alarm indicator lamp L3 can directly give out an alarm to the fire, so that the links of information transmission are reduced, and the alarm effect is good.

Alternatively, sound alarms may be provided in the power self-test unit 236, the voltage boosting self-test unit 237 and the alarm unit 233, the sound alarms of the respective units may be connected in series with the lamps L1, L2 and L3, or the lamps L1, L2 and L3 may be replaced by sound alarms.

In one example, the fire suppression unit 234 may comprise a hot aerosol fire extinguisher, wherein the hot aerosol fire extinguisher releases hot aerosol to extinguish a fire when the fire suppression unit 233 is in operation.

Therefore, the fire extinguisher adopting the hot aerosol has small volume, high fire extinguishing speed, no dead angle, no toxicity, no corrosion and no damage to the atmospheric ozone layer.

Optionally, as shown in fig. 3 and 4, the fire alarm module 23 further includes an activation unit 234, and the activation unit 234 functions as a master switch of the fire alarm module 23 and controls activation and deactivation of the fire alarm module 23. Wherein the start unit 234 includes a start button SQ1, the start button SQ1 being connected in a series circuit, wherein the fire alarm module 23 is in a start state when the start button SQ1 is closed, and the fire alarm module 23 is in an off state when the start button SQ1 is open. In this example, the closing and opening of the start button SQ1 may be controlled by the control module 22.

Therefore, the starting unit is arranged, so that the fire alarm module has the starting and closing functions, the opening and closing of the fire alarm module can be flexibly controlled, the working circuit of the fire alarm module can be directly disconnected by the starting unit when the fire alarm module is overhauled, and the overhauling time is saved.

In one embodiment of the invention, as shown in fig. 5, when the current collector of the rail vehicle is a charging blade arranged at the bottom of the rail vehicle, the current collector 10 is a charging slot arranged along the running rail, and the length of the charging slot is adapted to the length of the charging blade.

Alternatively, the current collector 10 is arranged close to the charger 20, i.e. the current collector 10 need not be arranged all the way along the running rails, but only at the charging station, and its length can be determined according to the length of the charging blade of the rail vehicle, thereby saving costs. Meanwhile, the current collector 10 is directly powered by the charging module 21, the wiring is short, the risk caused by overlong lines can be reduced, and the safety performance is good.

In addition, the non-contact network type charging of the rail vehicle through the charging groove is less influenced by environmental factors and is more stable than the contact network type charging under extremely severe conditions. Simultaneously, the non-contact net type is charged and the operation circuit integration nature is better, and the casing can set up in the equipment room of charging station, and is less to city landscape nature influence.

In one embodiment of the present invention, as shown in fig. 5, the charging module 21 includes an AC-DC converter 211 and a charging circuit 212, wherein one end of the AC-DC converter 211 is connected to the alternating current power AC, and the other end of the AC-DC converter 211 is connected to the current collector 10 through the charging circuit 212.

Optionally, an AC-DC converter 211 is used to convert 380V AC to 640V DC for charging the rail vehicle via the current collector 10.

In this embodiment, the charge command may include a precharge command and a charge enable command. When the rail vehicle is about to enter the charging station, a pre-charging command is sent to the charging device, so that the control module 22 controls the charging module 21 to pre-charge; when the rail vehicle does not receive the alarm signal and stops at the charging station, a charging permission instruction is sent to the charging device, so that the control module 22 controls the charging module 21 to charge the rail vehicle.

Specifically, a positioning module may be installed on the rail vehicle for positioning the rail vehicle in real time, and when the rail vehicle is driven to the charging station and the horizontal distance between the front charging blade and the current collector 10 is 0, the rail vehicle may send a precharge command to the charging device, so that the control module 22 precharges the charging slot through the charging circuit 212.

It should be noted that, if the alarm unit 233 outputs the alarm signal before the charging device receives the precharge command, the charging device may send the alarm signal to the rail vehicle after receiving the precharge command (without precharging), and after receiving the charge prohibition command, control the charging module 21 to prohibit charging the rail vehicle through the control module 22 until the alarm is released; the charging device can also send an alarm signal to the rail vehicle before receiving the pre-charging command, and after receiving the charging prohibition command, the control module 22 controls the charging module 21 to prohibit charging the rail vehicle until the alarm is released.

As the rail vehicle continues to travel, when the rail vehicle stops at the charging station, the charging blade is aligned with the charging slot, and if the rail vehicle does not receive the alarm signal in the process, the rail vehicle sends a charging permission instruction to the charging device, so that the control module 22 controls the charging circuit 212 to charge the rail vehicle.

Further, as shown in fig. 5, the current collector 10 includes a first slot 11 and a second slot 12 arranged in parallel, wherein the charging circuit 212 includes: positive contactor K1, negative contactor K2, pre-charge contactor K3, and pre-charge resistor R.

One end of the positive contactor K1 is connected to the positive electrode of the other end of the AC-DC converter 211, and the other end of the positive contactor K1 is connected to the first tank 11. One end of the negative electrode contactor K2 is connected to the negative electrode of the other end of the AC-DC converter 211, and the other end of the negative electrode contactor K2 is connected to the second tank body 12. One end of the precharge contactor K3 is connected to the positive electrode of the other end of the AC-DC converter 211. One end of the pre-charging resistor R is connected with the other end of the pre-charging contactor K3, and the other end of the pre-charging resistor R is connected with the first tank body 11.

The operating principle of the charging device for a rail vehicle according to one embodiment of the invention is described below with reference to fig. 6:

as shown in fig. 6, the rail vehicle is about to drive into the charging station, for example, the rail vehicle is driven to the charging station, and the rail vehicle sends a pre-charging command to the charging device just before the charging blade of the rail vehicle starts to "touch" (i.e., the horizontal distance is 0) the charging slot. After receiving the precharge command, the control module 22 controls the charging module 21 to start precharging, and at this time, the control module 22 controls the negative contactor K2 and the precharging contactor K3 to be closed, so as to precharge the charging slot through the precharging resistor R. Therefore, the voltage sudden change of the power receiving device of the railway vehicle can be reduced, and the power receiving device of the railway vehicle can be protected.

Further, in the pre-charging process, if the rail vehicle does not receive the alarm signal, when the rail vehicle is stopped stably at a preset position of the charging station, namely the charging blade is aligned with the charging slot, the rail vehicle sends a charging permission instruction to the charging device, and at this time, the control module 22 controls the pre-charging contactor K3 to be opened and controls the positive contactor K1 to be closed to charge the rail vehicle; if the rail vehicle receives the alarm signal, the control module 22 limits the charging power of the charging module 21 to 0, and controls the pre-charging contactor K3 to be switched off, so that the charging of the rail vehicle is finished.

In the main charging process, if the rail vehicle does not receive the alarm signal, after the rail vehicle is charged, for example, the SOC (State of Charge) of a power battery in the rail vehicle reaches 100%, the rail vehicle may send a charging end instruction to the charging device, and after receiving the charging end instruction, the control module 22 limits the charging power of the charging module 21 to 0, and controls the positive contactor K1 to be turned off, so as to complete the charging of the rail vehicle when the rail vehicle is approaching the station; if the rail vehicle receives the alarm signal, the rail vehicle sends a charging prohibition instruction to the charging device, and after receiving the charging prohibition instruction, the control module 22 limits the charging power of the charging module 21 to 0, controls the positive contactor K1 to be switched off, and ends charging of the rail vehicle.

In addition, when the fire sensing unit 232 senses a fire, if the control module 22 has not received a precharge command transmitted from the rail vehicle, the charging device wirelessly transmits an alarm signal to the rail vehicle. The rail vehicle generates a charging prohibition instruction according to the alarm signal and sends the charging prohibition instruction to the charging device, and the control module 22 directly controls the charging module 21 to prohibit charging of the rail vehicle after receiving the charging prohibition instruction until the alarm is released.

In summary, according to the charging device for the rail vehicle of the embodiment of the invention, the rail vehicle is charged in a non-contact network type through the charging slot, the influence of the environment is small, the charging stability is good, the fire alarm module is provided with the independent power supply unit, and the fire information is not required to be judged by the judgment logic, so that the line connection is simple, and the cost is low.

Fig. 7 is a block diagram of a charging system of a rail vehicle according to an embodiment of the present invention.

As shown in fig. 7, the charging system for a railway vehicle includes a railway vehicle 200 and the above-described charging device 100 for a railway vehicle.

The specific implementation of the charging system for a rail vehicle according to the embodiment of the present invention can be referred to the specific implementation of the charging device for a rail vehicle according to the above embodiment of the present invention.

According to the rail vehicle charging system provided by the embodiment of the invention, the rail vehicle can be safely charged through the charging device provided by the embodiment, and the implementation mode is simple and easy.

In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

In addition, functional units in the embodiments of the present invention may be integrated into one processing module, or each unit may exist alone physically, or two or more units are integrated into one module. The integrated module can be realized in a hardware mode, and can also be realized in a software functional module mode. The integrated module, if implemented in the form of a software functional module and sold or used as a stand-alone product, may also be stored in a computer readable storage medium.

The storage medium mentioned above may be a read-only memory, a magnetic or optical disk, etc. Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that variations, modifications, substitutions and alterations can be made to the above embodiments by those of ordinary skill in the art within the scope of the present invention.